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Date:      Mon, 15 Jun 2009 21:54:23 +0200
From:      Stefan Farfeleder <stefan@fafoe.narf.at>
To:        Sam Leffler <sam@freebsd.org>
Cc:        Roman Divacky <rdivacky@freebsd.org>, current@freebsd.org
Subject:   Re: [RFC]: (void)0 instead of empty defines
Message-ID:  <20090615195422.GB1418@lizard.fafoe.narf.at>
In-Reply-To: <4A369529.5090004@freebsd.org>
References:  <20090615181555.GA52009@freebsd.org> <4A369529.5090004@freebsd.org>

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On Mon, Jun 15, 2009 at 11:38:33AM -0700, Sam Leffler wrote:
> 
> Are you saying that:
> 
> if (cond)
>    ;
> 
> is considered worthy of a warning by the compiler?  Is it just "if" or all 
> conditional control constructs (e.g. while)?
> 
> I can image many instances of this construct arising from debugging 
> facilities.  This sounds like a stupid restriction and I would argue we 
> should just disable the warning.

GCC warns too with -Wextra.



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